Attila Csihar is a Hungarian black metal vocalist, best known for his vocal work on the album De Mysteriis Dom Sathanas by Mayhem. Ian Christe describes his vocals as "operatic."

His career started in the Hungarian metal band Tormentor. The band reached a cult status in black metal circles, even without major label releases. In 1992, Attila was invited to perform vocals on De Mysteriis Dom Sathanas after Mayhem's then-vocalist Dead committed suicide. The album became one of the quintessential albums of the genre, even though some fans consider Csihar's vocals out of place. In the band's now 20 year history, he's the band's only non-Scandinavian member.

After Mayhem, Csihar continued to work in various experimental projects, such as Plasma Pool, Aborym, and Korog. In 2004, he recorded vocals for the song 'Decay2 (Nihil's Maw)' by American Doom/Drone Metal band Sunn O))), and even performed live with the band on their European tour. He briefly performed in Keep of Kalessin as well. Currently, Attila left Aborym in order to rejoin Mayhem as the band's new singer, after their previous singer, Maniac, left. His final contribution to Aborym was performing lead vocals on the song Man Bites God on their 2006 album, Generator. Recently, Attila has joined Greg Anderson of Sunn O))) and Oren Ambarchi in a new project called Burial Chamber Trio. This outfit has recorded one album and released on vinyl by Southern Lord Records and has performed a small number of concerts in Europe in January and February 2007. For these concerts, Attila dressed in a jute sack while sporting a wig that is reminiscent of Norman Bates's mother in Psycho. When Csihar first joined Mayhem he was "grossed out" at the pig heads on stage and all of the dead animals for Csihar who states that he is a vegetarian in a interview with Revolver Magizine. "I was freaked out myself," concedes Csihar. "Like, Fuck, I don't know if I want to do this."